/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:    Header for implementation of background processing indicator

*

*/

#ifndef GLXFULLSCREENBUSYICON_H_

#define GLXFULLSCREENBUSYICON_H_

#include <alf/alfcontrol.h>

#include <mglxmedialistobserver.h>

// Forward decleartion

class CAlfEnv;

class CAlfAnchorLayout;

class CAlfImageVisual;

class CGlxUiUtility;

class MGlxMediaList;

enum TGlxBusyIconControlGroupId

    {

    EBGPSOriPortrait = 10,

    EBGPsOriLandscape = 20

    };

class CGlxFullScreenBusyIcon: public CAlfControl,public MGlxMediaListObserver

    {

public:

    /*

     * NewL()

     */

    static CGlxFullScreenBusyIcon* NewL(MGlxMediaList& aMediaList,CGlxUiUtility& aUiUtility);

    /*

     * destructor

     */

    ~CGlxFullScreenBusyIcon();

    /*

     *  Shows the Busy Icon to indicate TN generation is going on.

     *  @param aShow ETrue the icon will be shown and EFlase the icon will be hidden  

     */    

    void ShowBusyIconL(TBool aShow);

public://frm CAlControl

    void VisualLayoutUpdated(CAlfVisual& aVisual);        

public: // from MGlxMediaListObserver

    void HandleItemAddedL( TInt /*aStartIndex*/, TInt /*aEndIndex*/, MGlxMediaList* /*aList*/ ){}

    void HandleItemRemovedL( TInt /*aStartIndex*/, TInt /*aEndIndex*/, MGlxMediaList* /*aList*/){}

    void HandleAttributesAvailableL( TInt aItemIndex, 

            const RArray<TMPXAttribute>& /*aAttributes*/, MGlxMediaList* aList );    

    void HandleFocusChangedL( NGlxListDefs::TFocusChangeType /*aType*/, 

            TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList );

    void HandleItemSelectedL(TInt /*aIndex*/, TBool /*aSelected*/, MGlxMediaList* /*aList*/ ){}

    void HandleMessageL( const CMPXMessage& /*aMessage*/, MGlxMediaList* /*aList*/ ){}

    void HandleError( TInt /*aError*/ );

    void HandleCommandCompleteL( CMPXCommand* /*aCommandResult*/, TInt /*aError*/, 

            MGlxMediaList* /*aList*/ ){}

    void HandleMediaL( TInt /*aListIndex*/, MGlxMediaList* /*aList*/ ){}

    void HandleItemModifiedL( const RArray<TInt>& /*aItemIndexes*/, MGlxMediaList* /*aList*/ ){}

private:

    /*

     * Constructor

     */

	CGlxFullScreenBusyIcon(MGlxMediaList& aMediaList,CGlxUiUtility& aUiUtility);    

    /*

     * ConstructL()

     */

    void ConstructL();

    /*

     *  Updates the position of the icon based on the screen size landscape/portrait 

     */

    void UpdatePosition();

    /*

     *  Gets the current screen size 

     */

    TRect GetScreenSize();

    /*

     * Callback for periodic timer

     */

    static TInt PeriodicCallbackL( TAny* aPtr );

    /*

     * nonstatic func called from periodic timer

     */

    void CallPeriodicCallbackL();

    /*

     *  Check the thumbnail generation for focus item is done

     *  @return ETrue if the generation is complete,EFalse if generation is going on.

     *   

     */        

    TBool IsReadyL();

private:

	MGlxMediaList&         iMediaList;

	CGlxUiUtility&         iUiUtility;                      // CGlxUiUtility passed from FS view

    CAlfEnv*               iEnv;                            // Alf Env    

    CAlfAnchorLayout*      iMainVisual;                     // Anchor Layout

    CAlfImageVisual*       iBackgroundBorderImageVisual;    // Background Image Visual

    TRect                  iScreenSize;                     // Screen size      

    CPeriodic*             iPeriodic;

    TInt                   iBusyIconIndex;

    };

#endif /* GLXFULLSCREENBUSYICON_H_ */